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Finding the Fourth Proportional to 84,492,288,009.30, 126,738,432,013.95 and 84,492,288,009.30

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Solution

The fourth proportional to 84,492,288,009.30, 126,738,432,013.95 and 84,492,288,009.30 is: 126,738,432,013.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,492,288,009.30 : 126,738,432,013.95 = 84,492,288,009.30 : x
  2. Step 2: Convert to fraction form
    84,492,288,009.30/126,738,432,013.95 = 84,492,288,009.30/x
  3. Step 3: Cross multiply
    84,492,288,009.30x = 126,738,432,013.95 × 84,492,288,009.30
  4. Step 4: Simplify right side
    84,492,288,009.30x = 10,708,420,099,569,751,162,880
  5. Step 5: Solve for x
    x = 10,708,420,099,569,751,162,880/84,492,288,009.30
  6. Step 6: Final answer
    x = 126,738,432,013.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.